Gets the windows together with process id that are open on the local computer

Get-Windows.ps1

. '\Logging_Functions.ps1'

Function Get-Windows{
	
	[CmdletBinding()]
	param (
		[Parameter(Mandatory=$false)][string]$LogFile
	)
	
	Write-Verbose 'Performing operation "Get-Windows"'
	if ($LogFile) { 
		Log-Write -LogPath $sLogFile -LineValue 'Performing operation "Get-Windows"'
	}

	Add-Type @"
public class Windows
{
		
	private System.Collections.Generic.List<Window> windows;
		
	public System.Collections.Generic.List<Window> GetWindows() {
			
		windows = new System.Collections.Generic.List<Window>();
			
		// instantiate the delegate
		WindowEnumDelegate del = new WindowEnumDelegate(WindowEnumProc);
			
		// call the win32 function
		EnumChildWindows(System.IntPtr.Zero, del, 0);
		 	
		return windows;
	}
		
	// declare the delegate
	public delegate bool WindowEnumDelegate (System.IntPtr hwnd, int lParam);
	// declare the API function to enumerate child windows
	[System.Runtime.InteropServices.DllImport("user32.dll")]
	public static extern int EnumChildWindows(System.IntPtr hwnd, WindowEnumDelegate del, int lParam);
 
	// declare the GetWindowText API function
	[System.Runtime.InteropServices.DllImport("user32.dll")]
	public static extern int GetWindowText(System.IntPtr hwnd, System.Text.StringBuilder bld, int size);
 	
	[System.Runtime.InteropServices.DllImport("user32.dll")]
	static extern uint GetWindowThreadProcessId(System.IntPtr hWnd, out uint lpdwProcessId);
	    
	public bool WindowEnumProc(System.IntPtr hwnd, int lParam) {
		// get the text from the window
		System.Text.StringBuilder bld = new System.Text.StringBuilder(256);
		GetWindowText(hwnd, bld, 256);
		string text = bld.ToString();
		
		uint lpdwProcessId;
		GetWindowThreadProcessId(hwnd, out lpdwProcessId);
			
		if(text.Length > 0) {
            Window window = new Window();
            window.WindowText = text;
            window.ProcessId = lpdwProcessId;
			windows.Add(window);
		}
		return true;
	}
}
	
public class Window {
	public string WindowText;
	public uint ProcessId;
}
"@

	$object = New-Object Windows       
	$windows = $object.GetWindows()
	Write-Verbose "Windows count: $($windows.Count)"
	if ($LogFile) { 
		Log-Write -LogPath $LogFile -LineValue "Windows count: $($windows.Count)"
	}
	$windows
}

#Get-Windows